[PATCH for v5.9] netfilter: xtables: Replace HTTP links with HTTPS ones

[Alexander A. Klimov]

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster at al2klimov.de>
---
 Continuing my work started at 93431e0607e5.
 See also: git log --oneline '--author=Alexander A. Klimov <grandmaster at al2klimov.de>' v5.7..master
 (Actually letting a shell for loop submit all this stuff for me.)

 If there are any URLs to be removed completely
 or at least not (just) HTTPSified:
 Just clearly say so and I'll *undo my change*.
 See also: https://lkml.org/lkml/2020/6/27/64

 If there are any valid, but yet not changed URLs:
 See: https://lkml.org/lkml/2020/6/26/837

 If you apply the patch, please let me know.

 Sorry again to all maintainers who complained about subject lines.
 Now I realized that you want an actually perfect prefixes,
 not just subsystem ones.
 I tried my best...
 And yes, *I could* (at least half-)automate it.
 Impossible is nothing! :)


 net/netfilter/xt_CONNSECMARK.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/xt_CONNSECMARK.c b/net/netfilter/xt_CONNSECMARK.c
index a5c8b653476a..76acecf3e757 100644
--- a/net/netfilter/xt_CONNSECMARK.c
+++ b/net/netfilter/xt_CONNSECMARK.c
@@ -6,7 +6,7 @@
  * with the SECMARK target and state match.
  *
  * Based somewhat on CONNMARK:
- *   Copyright (C) 2002,2004 MARA Systems AB <http://www.marasystems.com>
+ *   Copyright (C) 2002,2004 MARA Systems AB <https://www.marasystems.com>
  *    by Henrik Nordstrom <hno at marasystems.com>
  *
  * (C) 2006,2008 Red Hat, Inc., James Morris <jmorris at redhat.com>
-- 
2.27.0